Prepare 3 8" pans with baking spray, then line them with parchment circles and then spray baking spray on top of parchment.

Preheat oven to 350 degrees.

Mix milk, eggs whites, vanilla until combined in medium bowl.

In mixer bowl place flour, sugar, baking powder and salt.

Mix on low, add butter and blend until incorporated.

Pour half of the liquid mixture into the flour mixture and beat on medium for 1-2 minutes.

Add remaining liquid and mix for one minute more.

Separate the batter amongst the three cake pans.

I scoop them out with a one cup measurement cup to be sure they are equal.

Bake for 25-30 minutes or until toothpick comes out clean.

Allow cake to cool in pans for 5 minutes,then remove cakes from pans and completely cool.

Recipe from Epicurious slightly adapted.